Dweets awesomed by u/ellisk1

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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Current theme challenge: #Opposites

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Agnes

function u(t) {

A=a=>Math.random()*a;for(P='M960 540',i=500;i--;P+='l'+(15-A(30))+' '+(15-A(30)));x.fillStyle=R(A(Q=255),A(Q),A(Q),.1),x.fill(new Path2D(P))

Sep 3 2018 6:10 PM UTC

}// 140/140

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Pastel

u/katkip

Nice

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ellisk1

remix of d/9453 by u/ellisk1

function u(t) {

t?X=Math.random()*2400-99:Y=0;x.fillStyle=`hsla(${3*t+X/9*C(q=t/50)+Y/5*S(q)},80%,50%,.04)`;x.beginPath();x.arc(X,Y,200,0,7);x.fill();Y=X/2

Aug 27 2018 10:47 PM UTC

}// 139/140

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Slowly shifting gradient v2

u/Xen

very nice style
u/aleamb

stylish!
u/magna

#waitforit
u/ellisk1

Thanks! Yeah it does take some time to get going ha

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prplz

remix of d/7238 by u/prplz

function u(t) {

let X,Y,A=S(t),B=C(t)
for(Y=q=32;Y--;)for(X=60;X--;x.fillRect(X*q,Y*q,q,q))x.fillStyle=X*B+Y*A&8^Y*B+X*A&8?'#000':'tan'

Aug 27 2018 8:37 AM UTC

}// 119/140

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atsn

function u(t) {

s=20;for(i=w=c.width;i-=s;)for(o=w;o-=s;x.fillStyle=`hsla(${(i*S(t)+o*C(t))/9},100%,${C(t)*5+75}%,${C(t*9+C(i)+o)-.7})`)x.fillRect(i,o,s,s)

Aug 27 2018 2:45 AM UTC

}// 139/140

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u/DataMeta

Clever alpha trick, chill style

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f8f82804

function u(t) {

with(x)f=d=>d--&&(fillRect(0,0,3,1),rotate(a=S(t)/9),translate(0,-d),f(d),translate(0,d),rotate(-a)),t||translate(960,540),rotate(.01);f(48)

Aug 26 2018 11:43 PM UTC

}// 140/140

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u/katkip

It is getting so beautiful after 1 minute

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ellisk1

function u(t) {

T=Math.floor(a=t%5*5);for(i=0;i<T;i++)x.fillStyle=`hsla(${2*a*a+i*360/T},90%,50%,.3)`,x.fillRect(S(q=5*t+i/T*6.28)*4*a*a,C(q)*4*a*a,-99,-99)

Aug 26 2018 8:19 PM UTC

}// 140/140

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Slowly shifting gradient

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f8f82804

function u(t) {

t?x.rotate(.01):x.translate(960,540);for(a=s=32;a--+s;c=4+S(t))for(b=s*2;b--+s;x.fillRect(s*a,s*b,s,s))x.fillStyle=`hsl(${c*a^c*b+t} 99%50%`

Aug 26 2018 2:26 AM UTC

}// 140/140

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katkip

remix of d/2298 by u/keithclark

function u(t) {

for(a=c.width^=0;d=C(--a+t)*S(b=a*1.2502),e=S(a+t)*S(b);x.fillRect(d*h+960,C(b)*h+540,i=h/40+10,i))h=900*(2+e*t)-2e3

Aug 25 2018 7:40 AM UTC

}// 116/140

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Black hole inside a sphere

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katkip

remix of d/9415 by u/f8f82804

function u(t) {

x.drawImage(c,-16,-10.2,1952,1100);x.fillStyle=`hsla(${t*25},99%,50%)`;x.font='216px a';t%1>.01||x.fillText(t|0,900,638)

Aug 25 2018 7:32 AM UTC

}// 120/140

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#counter

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katkip

remix of d/4495 by u/AliYil

function u(t) {

for(i=0;i<20;i++)for(j=0;j<12;j++){s=S(i+j-t*5)*25+25
x.fillStyle=`hsl(${2e2+S(j*i)*30},95%,62%)`
x.fillRect(i*100-s,j*100-s,s*t,s*t)}

Aug 24 2018 4:12 PM UTC

}// 134/140

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#waves

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